Indulge in a world of deep sleep with lightweight fabrics so soft, and filling so fluffy, that you won’t believe it’s not down! The Serta down illusion collection brings a world of marshmallow goodness to your sleep chamber, clouds turned into a cozy reality. This extra fluffy all-season comforter is perfectly balanced - not too hot, not too cold, but superb for getting a solid night's sleep all year round. It really is pure magic! 300 thread count twill 100% polyester microfiber fabric is exceedingly soft, durable, lightweight, and retains softness wash after wash. Next-level luxury! Down-free fiber delivers exceptional levels of fluffiness for a balanced night's sheep treated with patented microban anti-microbial formulae to inhibit odor-causing bacteria - never worry about being nose-blind to a funky bed! Sneeze factor: Products contain allergen barrier weaving which prevents dust mites and other common household allergens. Convenient care - life happens! Worry-free wash and dry. Sewn-through construction ensures fiber stays in place and does not shift to one side. Inherent moisture-wicking properties to keep you dry! Corner loops - 4 corner security! Never let your duvet shift again. The comforter has Duvet ties on all 4 corners - loops to keep duvet covers in place. Allow 24 - 48 hours after unpacking for the comforter to expand and reach full fluffiness.